KR20230139932A - Display device - Google Patents

Abstract

A display device according to the present invention includes a display panel, an input sensor including a first sensing area including a first sub-area and a second sub-area, and a first sensor controller that drives the first sensing area of the input sensor. . The input sensor is disposed in the first sub-area, has first sensing electrodes that receive a first transmission signal from the first sensor controller, and second sensing electrodes that are disposed in the first sub-region and intersect the first sensing electrodes. , third sensing electrodes disposed in the second sub-area and receiving a second transmission signal having a phase inverted from the first transmission signal from the first sensor controller, and disposed in the second sub-region and receiving a third sensing electrode. It includes fourth sensing electrodes crossing the electrodes.

Description

Display device {DISPLAY DEVICE}

The present invention relates to a display device, and more specifically, to a display device having an input sensing function.

Multimedia electronic devices such as televisions, mobile phones, tablet computers, navigation systems, game consoles, etc. are equipped with display devices for displaying images. In addition, display devices are also provided inside the car.

In addition to typical input methods such as buttons, keyboards, and mice, the display device may be equipped with an input sensor that can provide a touch-based input method that allows users to easily and intuitively and conveniently input information or commands.

The purpose of the present invention is to provide a display device capable of reducing electromagnetic interference in a structure including an input sensor.

A display device according to an aspect of the present invention includes a display panel that displays an image, a first sensing area disposed on the display panel and sensing an input, and the first sensing area includes a first sub-area and a second sub-area. It includes an input sensor including an area, and a first sensor controller that drives the first sensing area.

The input sensor is disposed in the first sub-area and has first sensing electrodes that receive a first transmission signal from the first sensor controller, and is disposed in the first sub-region and intersects the first sensing electrodes. Second sensing electrodes, third sensing electrodes disposed in the second sub area and receiving a second transmission signal having a phase inverted from the first transmission signal from the first sensor controller, and the second sub region It includes fourth sensing electrodes disposed in the region and crossing the third sensing electrodes.

According to the present invention, by supplying a first transmission signal to the first sub-area and a second transmission signal having an inverted phase from the first transmission signal to the second sub-area, there is a connection between the first and second transmission signals. Destructive interference may occur. Therefore, the problem of electro-magnetic interference (EMI) due to destructive interference between the first and second transmission signals can be improved.

FIG. 1A is a diagram showing the internal structure of a vehicle equipped with a display device according to an embodiment of the present invention.
FIG. 1B is a plan view of the display device shown in FIG. 1A.
Figure 2A is a cross-sectional view of a display device according to an embodiment of the present invention.
Figure 2b is a cross-sectional view of a display device according to an embodiment of the present invention.
FIG. 2C is a cross-sectional view of the display device shown in FIG. 1B cut along the cutting line I-I′ according to an embodiment of the present invention.
FIG. 2D is a cross-sectional view of the display device shown in FIG. 1B cut along the cutting line I-I′ according to an embodiment of the present invention.
Figure 3 is an exploded perspective view of a display device according to an embodiment of the present invention.
Figure 4 is a top view of an input sensor according to an embodiment of the present invention.
Figure 5a is a waveform diagram showing first to fourth transmission signals according to an embodiment of the present invention.
Figure 5b is a waveform diagram showing first to fourth transmission signals according to an embodiment of the present invention.
FIG. 6A is an enlarged plan view of a portion of the input sensor shown in FIG. 4.
Figure 6b is a cross-sectional view taken along the cutting line II-II' in Figure 6a.
Figure 7a is an enlarged plan view of a portion of an input sensor according to an embodiment of the present invention.
Figure 7b is a cross-sectional view taken along the cutting line III-III' in Figure 7a.
Figure 8a is a top view of an input sensor according to an embodiment of the present invention.
FIG. 8B is an enlarged plan view of the first portion shown in FIG. 8A.
Figure 9 is a top view of an input sensor according to an embodiment of the present invention.
FIG. 10A is an enlarged plan view of the second portion shown in FIG. 4.
FIG. 10B is an enlarged plan view of the third portion shown in FIG. 4.
FIG. 10C is a diagram showing area changes by location of first sub-dummy patterns according to an embodiment of the present invention.
FIG. 10D is a diagram showing area changes by location of third sub-dummy patterns according to an embodiment of the present invention.
Figure 11 is a plan view of a display device according to an embodiment of the present invention.
Figure 12 is a top view of an input sensor according to an embodiment of the present invention.

In this specification, when a component (or region, layer, portion, etc.) is referred to as being “on,” “connected to,” or “coupled to” another component, it is directly placed/on the other component. This means that they can be connected/combined or a third component can be placed between them.

Like reference numerals refer to like elements. Additionally, in the drawings, the thickness, proportions, and dimensions of components are exaggerated for effective explanation of technical content. “And/or” includes all combinations of one or more that can be defined by the associated components.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

Additionally, terms such as “below”, “on the lower side”, “on”, and “on the upper side” are used to describe the relationship between the components shown in the drawings. The above terms are relative concepts and are explained based on the direction indicated in the drawings.

Terms such as “include” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but do not include one or more other features, numbers, or steps. , it should be understood that this does not exclude in advance the possibility of the presence or addition of operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms (including technical terms and scientific terms) used in this specification have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. Additionally, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant technology, and unless explicitly defined herein, should not be interpreted as having an overly idealistic or overly formal meaning. It shouldn't be.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1A is a diagram showing the internal structure of a vehicle equipped with a display device according to an embodiment of the present invention, and FIG. 1B is a top view of the display device shown in FIG. 1A.

Referring to FIGS. 1A and 1B , the display device DD may be a device that is activated according to an electrical signal. For example, the display device DD may be a television, a monitor, or a large display device used on an external billboard, or in an automobile (AM). However, the present invention is not limited to this, and the display device DD may be a display device employed in small and medium-sized electronic devices such as personal computers, laptop computers, personal digital terminals, game consoles, portable electronic devices, and cameras. Additionally, these are presented merely as examples, and may be display devices employed in other electronic devices as long as they do not deviate from the concept of the present invention. In this embodiment, the display device DD disposed inside the automobile AM is shown as an example.

An active area (AA) and a peripheral area (NAA) may be defined in the display device (DD). The active area (AA) is an area where pixels are arranged and can actually display an image (IM). The active area AA may include a surface defined by the first direction DR1 and the second direction DR2. 1A and 1B exemplarily illustrate that the active area AA has a rectangular shape, but the shape of the active area AA may vary depending on the shape of the display device DD.

The surrounding area (NAA) may be an area where the image (IM) is not displayed. As an example of the present invention, the peripheral area (NAA) may surround the active area (AA). However, the present invention is not limited to this. The peripheral area (NAA) may be placed only on one side of the active area (AA) or may be omitted.

The display device DD may detect an input using the user US's body (eg, a finger) or an input using an input device. The input device may refer to a device other than the user's (US) body. For example, the input device may be an active pen, stylus pen, touch pen, or electronic pen. Input using the user's (US) body may include various forms of external input such as touch, heat, or pressure using a part of the user's (US) body.

FIG. 2A is a cross-sectional view of a display device according to an embodiment of the present invention, FIG. 2B is a cross-sectional view of a display device according to an embodiment of the present invention, and FIG. 2C is a cross-sectional view of the display device shown in FIG. 1B taken along line I-I. This is a cross-sectional view cut according to `. FIG. 2D is a cross-sectional view of the display device shown in FIG. 1B cut along the cutting line I-I′ according to an embodiment of the present invention.

Referring to FIG. 2A , the display device DD may include a display panel DP and an input sensor ISP. The input sensor (ISP) may be referred to as an input detection panel.

The display panel DP may include a first base layer BS1, a display circuit layer DP_CL, a display element layer DP_OLED, a second base layer BS2, and a coupling member SLM. The input sensor (ISP) may be disposed on the second base layer (BS2).

Each of the first base layer BS1 and the second base layer BS2 may be a silicon substrate, a plastic substrate, a glass substrate, an insulating film, or a laminated structure including a plurality of insulating layers.

The display circuit layer DP_CL may be disposed on the first base layer BS1. The display circuit layer DP_CL may include a plurality of insulating layers, a plurality of conductive layers, and a semiconductor layer. A plurality of conductive layers of the display circuit layer DP_CL may form signal wires or a control circuit of a pixel.

The display element layer DP_OLED may be disposed on the display circuit layer DP_CL. The display device layer (DP_OLED) may include light-emitting devices. For example, the display device layer (DP_OLED) may include organic light emitting diodes, inorganic light emitting diodes, quantum dots, quantum rods, micro LEDs, or nano LEDs.

The second base layer BS2 may be disposed on the display element layer DP_OLED. A predetermined space may be defined between the second base layer BS2 and the display element layer DP_OLED. The space may be filled with air or an inert gas. Additionally, in one embodiment of the present invention, the space may be filled with a filling layer (FL, see FIG. 2C) such as silicone-based polymer, epoxy-based resin, or acrylic-based resin.

A coupling member SLM may be disposed between the first base layer BS1 and the second base layer BS2. The coupling member SLM may couple the first base layer BS1 and the second base layer BS2. The coupling member (SLM) may include an organic material such as a photo-curable resin or a photoplastic resin, or an inorganic material such as a frit seal, and is not limited to any one embodiment.

The input sensor (ISP) may include a plurality of insulating layers and a plurality of conductive layers. The plurality of conductive layers may constitute sensing electrodes that sense external inputs, sensing wires electrically connected to the sensing electrodes, and sensing pads electrically connected to the sensing wirings.

Referring to FIG. 2B, the display device DD_1 may include a display panel DP_1 and an input sensor ISP_1. The input sensor (ISP_1) may be referred to as an input detection layer.

The display panel DP_1 may include a base layer BS, a display circuit layer DP_CL, a display element layer DP_OLED, and an encapsulation layer TFE. The base layer (BS) may be a flexible type. The input sensor (ISP_1) may be disposed on the encapsulation layer (TFE). According to an embodiment of the present invention, the display panel DP_1 and the input sensor ISP_1 may be formed through a continuous process. That is, the input sensor (ISP_1) can be formed directly on the encapsulation layer (TFE).

Referring to FIGS. 2A and 2C , at least one inorganic layer may be formed on the top surface of the first base layer BS1 in the display panel DP. The inorganic layer may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon oxynitride, silicon nitride, zirconium oxide, and hafnium oxide. The inorganic layer may be formed in multiple layers. Multiple inorganic layers may constitute a barrier layer and/or a buffer layer. In this embodiment, the display panel DP_1 is shown as including a buffer layer BFL.

The buffer layer (BFL) can improve the bonding strength between the first base layer (BS1) and the semiconductor pattern. The buffer layer (BFL) may include a silicon oxide layer and a silicon nitride layer, and the silicon oxide layer and the silicon nitride layer may be alternately stacked.

A semiconductor pattern may be disposed on the buffer layer (BFL). The semiconductor pattern may include polysilicon. However, without being limited thereto, the semiconductor pattern may include amorphous silicon, low-temperature polycrystalline silicon, or an oxide semiconductor.

FIG. 2C only illustrates some semiconductor patterns, and additional semiconductor patterns may be arranged in other areas. Semiconductor patterns can be arranged in specific rules across pixels. Semiconductor patterns may have different electrical properties depending on whether or not they are doped. The semiconductor pattern may include a first region with high conductivity and a second region with low conductivity. The first region may be doped with an N-type dopant or a P-type dopant. A P-type transistor may include a doped region doped with a P-type dopant, and an N-type transistor may include a doped region doped with an N-type dopant. The second region may be an undoped region or may be doped at a lower concentration than the first region.

The conductivity of the first region is greater than that of the second region, and may substantially serve as an electrode or signal line. The second area may substantially correspond to the channel area of the transistor. In other words, part of the semiconductor pattern may be a channel part of the transistor, another part may be the source or drain of the transistor, and another part may be a connection electrode or a connection signal line.

Each of the pixels may have an equivalent circuit including seven transistors, one capacitor, and a light emitting element, and the equivalent circuit of the pixel may be modified into various forms. Figure 2c illustrates one transistor (100PC) and a light emitting element (100PE) included in a pixel.

The transistor (100PC) may include a source (SC1), a channel (CH1), a drain (D1), and a gate (G1). The source (SC1), the channel portion (CH1), and the drain (D1) may be formed from a semiconductor pattern. The source SC1 and the drain D1 may extend in opposite directions from the channel portion CH1 in cross section. Figure 2c shows a portion of a connection signal line (SCL) formed from a semiconductor pattern. Although not separately shown, the connection signal line (SCL) may be electrically connected to the drain (D1) of the transistor (100PC) on a plane.

The first insulating layer 10 may be disposed on the buffer layer BFL. The first insulating layer 10 commonly overlaps a plurality of pixels and may cover the semiconductor pattern. The first insulating layer 10 may be an inorganic layer and/or an organic layer, and may have a single-layer or multi-layer structure. The first insulating layer 10 may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide. In this embodiment, the first insulating layer 10 may be a single layer of silicon oxide. The first insulating layer 10 as well as the insulating layers of the display circuit layer DP_CL, which will be described later, may be inorganic layers and/or organic layers, and may have a single-layer or multi-layer structure. The inorganic layer may include at least one of the above-mentioned materials, but is not limited thereto.

The gate G1 is disposed on the first insulating layer 10. The gate G1 may be part of a metal pattern. The gate (G1) overlaps the channel portion (CH1). In the process of doping the semiconductor pattern, the gate (G1) can function as a mask.

The second insulating layer 20 is disposed on the first insulating layer 10 and may cover the gate G1. The second insulating layer 20 may commonly overlap pixels. The second insulating layer 20 may be an inorganic layer and/or an organic layer, and may have a single-layer or multi-layer structure. The second insulating layer 20 may include at least one of silicon oxide, silicon nitride, and silicon oxynitride. In this embodiment, the second insulating layer 20 may have a multilayer structure including a silicon oxide layer and a silicon nitride layer.

The third insulating layer 30 may be disposed on the second insulating layer 20. The third insulating layer 30 may have a single-layer or multi-layer structure. For example, the third insulating layer 30 may have a multilayer structure including a silicon oxide layer and a silicon nitride layer.

The first connection electrode CNE1 may be disposed on the third insulating layer 30 . The first connection electrode CNE1 may be connected to the connection signal line SCL through the contact hole CNT-1 penetrating the first, second, and third insulating layers 10, 20, and 30.

The fourth insulating layer 40 may be disposed on the third insulating layer 30. The fourth insulating layer 40 may be a single layer of silicon oxide. The fifth insulating layer 50 may be disposed on the fourth insulating layer 40. The fifth insulating layer 50 may be an organic layer.

The second connection electrode CNE2 may be disposed on the fifth insulating layer 50 . The second connection electrode CNE2 may be connected to the first connection electrode CNE1 through the contact hole CNT-2 penetrating the fourth insulating layer 40 and the fifth insulating layer 50.

The sixth insulating layer 60 is disposed on the fifth insulating layer 50 and may cover the second connection electrode CNE2. The sixth insulating layer 60 may be an organic layer.

The display element layer DP_OLED may be disposed on the display circuit layer DP_CL. The display device layer (DP_OLED) may include a light emitting device (100PE) and a pixel defining layer (70). For example, the display device layer (DP_OLED) may include an organic light emitting material, an inorganic light emitting material, quantum dot, quantum rod, micro LED, or nano LED. Hereinafter, the light-emitting device 100PE will be described as an example of an organic light-emitting device, but is not particularly limited thereto.

The light emitting device 100PE may include a first electrode (AE), a light emitting layer (EL), and a second electrode (CE). The first electrode AE may be disposed on the sixth insulating layer 60. The first electrode AE may be connected to the second connection electrode CNE2 through the contact hole CNT-3 penetrating the sixth insulating layer 60.

The pixel defining film 70 is disposed on the sixth insulating layer 60 and may cover a portion of the first electrode AE. An opening 70-OP is defined in the pixel defining layer 70. The opening 70-OP of the pixel defining layer 70 exposes at least a portion of the first electrode AE.

The active area (AA, see FIG. 1B) may include a light-emitting area (PXA) and a non-light-emitting area (NPXA) adjacent to the light-emitting area (PXA). The non-emissive area (NPXA) may surround the light-emitting area (PXA). In this embodiment, the light emitting area PXA is defined to correspond to a partial area of the first electrode AE exposed by the opening 70-OP.

The light emitting layer EL may be disposed on the first electrode AE. The light emitting layer EL may be disposed in an area corresponding to the opening 70-OP. That is, the light emitting layer EL may be formed separately in each pixel. When the light emitting layer EL is formed separately in each pixel, each light emitting layer EL may emit light of at least one color among blue, red, and green. However, the present invention is not limited to this, and the light emitting layer EL may be connected to the pixels and provided in common. In this case, the light emitting layer EL may provide blue light or white light.

The second electrode (CE) may be disposed on the light emitting layer (EL). The second electrode CE may have an integrated shape and be commonly disposed in a plurality of pixels.

Although not shown, a hole control layer may be disposed between the first electrode AE and the light emitting layer EL. The hole control layer may be commonly disposed in the emission area (PXA) and the non-emission area (NPXA). The hole control layer may include a hole transport layer and may further include a hole injection layer. An electronic control layer may be disposed between the light emitting layer (EL) and the second electrode (CE). The electronic control layer includes an electron transport layer and may further include an electron injection layer. The hole control layer and the electronic control layer may be commonly formed in a plurality of pixels using an open mask.

The second base layer BS2 may be disposed on the display device layer DP-OLED. As an example of the present invention, the first and second base layers BS1 and BS2 may be of a rigid type.

A filling layer FL may be disposed between the first and second base layers BS1 and BS2. The filling layer FL may be disposed in a space sealed by a coupling member (SLM, see FIG. 2A) between the first and second base layers BS1 and BS2. The filling layer (FL) may include a thermosetting material.

The input sensor (ISP) may be placed directly on the display panel (DP). For example, the input sensor (ISP) may be placed directly on the second base layer (BS2).

Referring to FIGS. 2B and 2D , the encapsulation layer (TFE) may be disposed on the display element layer (DP_OLED). The encapsulation layer (TFE) may include an inorganic layer, an organic layer, and an inorganic layer sequentially stacked, but the layers constituting the encapsulation layer (TFE) are not limited thereto.

The inorganic layers can protect the display device layer (DP_OLED) from moisture and oxygen, and the organic layer can protect the display device layer (DP_OLED) from foreign substances such as dust particles. The inorganic layers may include a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. The organic layer may include, but is not limited to, an acrylic-based organic layer.

The input sensor (ISP_1) may be formed on the display panel (DP_1) through a continuous process. In this case, the input sensor (ISP_1) can be expressed as being placed directly on the display panel (DP_1). Directly placed (or immediately placed) may mean that a third component is not placed between the input sensor ISP_1 and the display panel DP_1. That is, a separate adhesive or coupling member may not be disposed between the input sensor (ISP_1) and the display panel (DP_1). Alternatively, the input sensor ISP_1 may be coupled to the display panel DP_1 through an adhesive member or a coupling member. The adhesive member may include a conventional adhesive or adhesive.

2C and 2D, the input sensor (ISP, ISP_1) includes a base insulating layer 201, a first conductive layer 202, a sensing insulating layer 203, a second conductive layer 204, and a cover insulating layer. It may include a layer 205.

The base insulating layer 201 may be an inorganic layer containing at least one of silicon nitride, silicon oxynitride, and silicon oxide. Alternatively, the base insulating layer 201 may be an organic layer containing epoxy resin, acrylic resin, or imide-based resin. The base insulating layer 201 may have a single-layer structure or a multi-layer structure stacked along the third direction DR3.

Each of the first conductive layer 202 and the second conductive layer 204 may have a single-layer structure or a multi-layer structure stacked along the third direction DR3.

The single-layer conductive layer may include a metal layer or a transparent conductive layer. The metal layer may include molybdenum, silver, titanium, copper, aluminum, or alloys thereof. The transparent conductive layer is made of a material such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), or indium zinc tin oxide (IZTO). It may contain transparent conductive oxide. In addition, the transparent conductive layer may include conductive polymers such as PEDOT, metal nanowires, graphene, etc.

The multi-layered conductive layer may include metal layers. The metal layers may have, for example, a three-layer structure of titanium/aluminum/titanium. The multi-layered conductive layer may include at least one metal layer and at least one transparent conductive layer.

At least one of the sensing insulating layer 203 and the cover insulating layer 205 may include an inorganic film. The inorganic film may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide.

At least one of the sensing insulating layer 203 and the cover insulating layer 205 may include an organic layer. The organic film is made of at least one of acrylic resin, methacrylic resin, polyisoprene, vinyl resin, epoxy resin, urethane resin, cellulose resin, siloxane resin, polyimide resin, polyamide resin, and perylene resin. It can be included.

Figure 3 is an exploded perspective view of a display device according to an embodiment of the present invention.

Referring to FIG. 3 , the display device DD may include a display panel DP and an input sensor ISP.

The display panel DP may be configured to actually generate images. The display panel DP may be an emissive display panel. For example, the display panel DP may be an organic light emitting display panel, a quantum dot display panel, a micro LED display panel, or a nano LED display panel.

The display panel DP includes a display area DA that displays an image IM (see FIG. 1B) and a non-display area NDA adjacent to the display area DA. The display area DA may be an area corresponding to the active area AA shown in FIG. 1B, and the non-display area NDA may be an area corresponding to the peripheral area NAA shown in FIG. 1B. The display area DA is an area where an image is actually displayed, and the non-display area NDA is a bezel area where an image is not displayed. Although FIG. 3 illustrates a structure in which the non-display area NDA surrounds the display area DA, the present invention is not limited to this. The non-display area NDA may be disposed on at least one side of the display area DA.

The display panel DP includes a plurality of pixels PX and signal lines connected to the plurality of pixels PX. Each of the plurality of pixels (PX) may include a light emitting element. Signal lines may include data lines, scan lines, and power lines.

The input sensor (ISP) may be disposed on the display panel (DP). The input sensor (ISP) can detect input applied from the outside. As an example of the present invention, the input sensor (ISP) may be arranged to overlap the display area (DA). The input sensor (ISP) may include multiple areas. Figure 3 exemplarily shows that the input sensor (ISP) is divided into two areas by a virtual boundary line (BL), but the number of areas provided to the input sensor (ISP) is not limited to this. Hereinafter, the two areas are referred to as the first sensing area (SA1) and the second sensing area (SA2), respectively. The first and second sensing areas SA1 and SA2 may be adjacent to each other in the second direction DR2.

The display device DD may further include a plurality of data driving chips (DIC1 to DIC4), a plurality of flexible films (COF1 to COF4), and a printed circuit board (PCB). A plurality of flexible films (COF1 to COF4) are provided between the display panel (DP) and the printed circuit board (PCB), and can electrically connect the display panel (DP) and the printed circuit board (PCB). One end of each flexible film (COF1 to COF4) is coupled to the display panel (DP), and the other end is coupled to a printed circuit board (PCB).

Figure 3 shows a structure in which data driving chips (DIC1 to DIC4) are respectively mounted on flexible films (COF1 to COF4), but the present invention is not limited to this. That is, the data driving chips DIC1 to DIC4 can be directly mounted on the display panel DP using a chip on glass (COG) method.

Various circuits may be provided on the printed circuit board (PCB) to generate various control signals and power signals necessary to drive the display panel DP and the data driving chips DIC1 to DIC4. As an example of the present invention, a main controller (MCU) may be mounted on a printed circuit board (PCB) to control the overall operation of the display device (DD). For example, the main controller (MCU) may include at least one microprocessor, and the main controller (MCU) may also be referred to as a host. The main controller (MCU) may further include a graphics controller.

The display device DD may further include a first sensor controller TIC1 and a second sensor controller TIC2 for controlling the operation of the input sensor ISP. As an example of the present invention, two sensor controllers (TIC1 and TIC2) are shown, but the present invention is not limited thereto. When the size of the display device DD increases, the number of sensor controllers TIC1 and TIC2 may further increase.

The first sensor controller (TIC1) controls the operation of the first sensing area (A1) of the input sensor (ISP), and the second sensor controller (TIC2) controls the operation of the second sensing area (A2) of the input sensor (ISP). can be controlled. Each of the first and second sensor controllers (TIC1 and TIC2) may be configured in the form of a chip and mounted on a printed circuit board (PCB).

The first and second sensor controllers (TIC1 and TIC2) may receive a sensing control signal, etc. from the main controller (MCU). The sensing control signal may include a mode decision signal or a clock signal that determines the driving mode (or sensing mode) of the first and second sensor controllers TIC1 and TIC2. The first and second sensor controllers TIC1 and TIC2 may provide transmission signals to be described later to the input sensor ISP based on the sensing control signal.

The first and second sensor controllers (TIC1, TIC2) calculate the coordinate information of the input based on the received signals received from the input sensor (ISP) and provide a coordinate signal with the coordinate information to the main controller (MCU). You can. The main controller (MCU) executes operations corresponding to input based on coordinate signals. For example, the main controller (MCU) may operate the display panel (DP) to display a new image on the display panel (DP) based on the coordinate signal.

FIG. 4 is a top view of an input sensor according to an embodiment of the present invention, FIG. 5A is a waveform diagram showing first to fourth transmission signals according to an embodiment of the present invention, and FIG. 5B is an embodiment of the present invention. This is a waveform diagram showing the first to fourth transmission signals according to .

Referring to FIGS. 4, 5A, and 5B, the input sensor (ISP) includes a first sensing area (SA1) and a second sensing area (SA2). The first sensing area SA1 and the second sensing area SA2 may be adjacent to each other in the second direction DR2. Although the input sensor (ISP) is shown to include two sensing areas (SA1 and SA2), the present invention is not limited thereto. Alternatively, the input sensor (ISP) may include one sensing area or may include three or more sensing areas.

The first sensing area SA1 includes a first sub-area SSA1 and a second sub-area SSA2. The first and second sub-areas SSA1 and SSA2 may be adjacent to each other in the first direction DR1. The second sensing area SA2 includes a third sub-area SSA3 and a third sub-area SSA4. The third and fourth sub-areas SSA3 and SS4 may be adjacent to each other in the first direction DR1.

The input sensor (ISP) may include first sensing electrodes (TE1), second sensing electrodes (RE1), third sensing electrodes (TE2), and fourth sensing electrodes (RE2). The first sensing electrodes TE1 are disposed in the first sub-area SSA1 and receive the first transmission signal TS1 from the first sensor controller TIC1. The second sensing electrodes RE1 are disposed in the first sub-area SSA1 and intersect the first sensing electrodes TE1. The first sensing electrodes TE1 may extend in the first direction DR1 and be arranged in the second direction DR2. The second sensing electrodes RE1 may extend in the second direction DR2 and be arranged in the first direction DR1. The third sensing electrodes TE2 are disposed in the second sub-area SSA2 and receive the second transmission signal TS2 from the first sensor controller TIC1. The second transmission signal TS2 may have a phase inverted from that of the first transmission signal TS1. The fourth sensing electrodes RE2 are disposed in the second sub-area SSA2 and intersect the third sensing electrodes TE2. The third sensing electrodes TE2 may extend in the first direction DR1 and be arranged in the second direction DR2. The fourth sensing electrodes RE2 may extend in the second direction DR2 and be arranged in the first direction DR1.

The first sensing electrodes TE1 may be referred to as first transmission electrodes, and the third sensing electrodes TE2 may be referred to as second transmission electrodes. Additionally, the second sensing electrodes RE1 may be referred to as first receiving electrodes, and the fourth sensing electrodes RE2 may be referred to as second receiving electrodes.

The number of first sensing electrodes TE1 provided in the first sub-area SSA1 is the same as the number of third sensing electrodes TE2 provided in the second sub-area SSA2. The number of second sensing electrodes RE1 provided in the first sub-area SSA1 is the same as the number of fourth sensing electrodes RE2 provided in the second sub-area SSA2. In FIG. 4 , seven first sensing electrodes TE1 are disposed in the first sub-area SSA1 and seven third sensing electrodes TE2 are disposed in the second sub-area SSA2. Although shown, the number of first and third sensing electrodes TE1 and TE2 is not limited thereto. In FIG. 4 , four second sensing electrodes RE1 are disposed in the first sub-area SSA1 and four fourth sensing electrodes RE2 are disposed in the second sub-area SSA2. Although shown, the number of second and fourth sensing electrodes RE1 and RE2 is not limited to this.

The length of the first sensing electrodes TE1 in the first direction DR1 may be substantially the same as the length of the third sensing electrodes TE2 in the first direction DR1. Specifically, the length of the first sensing electrode disposed in the first row among the first sensing electrodes TE1 and the third sensing electrode disposed in the first column among the third sensing electrodes TE2 may be the same. That is, the first and third sensing electrodes TE1 and TE2 disposed in the same row may have the same length.

As an example of the present invention, the first sensing electrodes TE1 and the third sensing electrodes TE2 may have shapes that are symmetrical to each other with respect to the boundaries of the first and second sub-areas SSA1 and SSA2. The first sensing electrodes TE1 and the third sensing electrodes TE2 may be disposed to be spaced apart from each other at the boundary between the first sub-area SSA1 and the second sub-area SSA2. The first sensing electrodes TE1 may be electrically insulated from the third sensing electrodes TE2.

Among the second sensing electrodes RE1, the second border sensing electrode disposed adjacent to the border of the first and second sub-areas SSA1 and SSA2 has a different area (e.g., half of the area) from the remaining second sensing electrodes. area). Among the fourth sensing electrodes RE2, the fourth border sensing electrode disposed adjacent to the border of the first and second sub-areas SSA1 and SSA2 also has a different area (e.g., half of the area) from the remaining fourth sensing electrodes. area). However, the present invention is not limited to this. For example, the second boundary sensing electrode may have the same area as the remaining second sensing electrodes, and the fourth boundary sensing electrode may also have the same area as the remaining fourth sensing electrodes.

The input sensor (ISP) includes first transmission lines (TL1a to TL7a), first reception lines (RL1a to RL4a), second transmission lines (TL1b to TL7b), and second reception lines (RL1b to RL4b). Includes. The first transmission lines TL1a to TL7a, the first reception lines RL1a to RL4a, the second transmission lines TL1b to TL7b, and the second reception lines RL1b to RL4b are connected to the display panel DP, It may be placed corresponding to the non-display area (NDA, see FIG. 3).

The first transmission lines TL1a to TL7a are connected to the first sensing electrodes TE1, and the first reception lines RL1a to RL4a are connected to the second sensing electrodes RE1. The second transmission lines TL1b to TL7b are connected to the third sensing electrodes TE2, and the second reception lines RL1b to RL4b are connected to the fourth sensing electrodes RE2.

The first transmission lines TL1a to TL7a receive the first transmission signal TS1 from the first sensor controller TIC1 and provide the first transmission signal TS1 to the first sensing electrodes TE1. The second transmission lines TL1b to TL7b receive the second transmission signal TS2 from the first sensor controller TIC1 and provide the second transmission signal TS2 to the third sensing electrodes TE2.

The first sensor controller (TIC1) includes a first data acquisition unit (AFE1) that receives the first received signal from the second sensing electrodes (RE1) and a first data acquisition unit (AFE1) that receives the second received signal from the fourth sensing electrodes (RE2). 2 Includes data acquisition unit (AFE2). The first data acquisition unit (AFE1) receives the first reception signal through the first reception lines (RL1a to RL4a), and the second data acquisition unit (AFE2) receives the first reception signal through the second reception lines (RL1b to RL4b). Receive a second reception signal.

The first sensor controller TIC1 calculates the capacitance (hereinafter referred to as mutual capacitance) between the first and second sensing electrodes TE1 and RE1 in the first sub-area SSA1 based on the first received signal. ) can be detected and coordinate information about the location where the change was detected can be generated. The first sensor controller TIC1 detects a change in mutual capacitance between the third and fourth sensing electrodes TE2 and RE2 in the second sub-area SSA2 based on the second received signal, and detects the change. Coordinate information about the location can be generated.

The input sensor (ISP) may further include fifth sensing electrodes (TE3), sixth sensing electrodes (RE3), seventh sensing electrodes (TE4), and eighth sensing electrodes (RE4). The fifth sensing electrodes TE3 are disposed in the third sub-area SSA3 and receive the third transmission signal TS3 from the second sensor controller TIC2. The sixth sensing electrodes RE3 are disposed in the third sub-area SSA3 and intersect the fifth sensing electrodes TE3. The fifth sensing electrodes TE3 may extend in the first direction DR1 and be arranged in the second direction DR2. The sixth sensing electrodes RE3 may extend in the second direction DR2 and be arranged in the first direction DR1. The seventh sensing electrodes TE4 are disposed in the fourth sub-area SSA4 and receive the fourth transmission signal TS4 from the second sensor controller TIC2. The fourth transmission signal TS4 has an inverted phase from the third transmission signal TS3. The eighth sensing electrodes RE4 are disposed in the fourth sub-area SSA4 and intersect the seventh sensing electrodes TE4. The seventh sensing electrodes TE4 may extend in the first direction DR1 and be arranged in the second direction DR2. The eighth sensing electrodes RE4 may extend in the second direction DR2 and be arranged in the first direction DR1.

The fifth sensing electrodes TE3 may be referred to as third transmission electrodes, and the seventh sensing electrodes TE4 may be referred to as fourth transmission electrodes. Additionally, the sixth sensing electrodes RE3 may be referred to as third receiving electrodes, and the eighth sensing electrodes RE4 may be referred to as fourth receiving electrodes.

The number of fifth sensing electrodes TE3 provided in the third sub-area SSA3 is the same as the number of seventh sensing electrodes TE4 provided in the fourth sub-area SSA4. The number of sixth sensing electrodes RE3 provided in the third sub-area SSA3 is the same as the number of eighth sensing electrodes RE4 provided in the fourth sub-area SSA4. The third sub-area SSA3 is adjacent to the first sub-area SSA1 and the second direction DR2, and the fourth sub-area SSA4 is adjacent to the second sub-area SSA2 and the second direction DR2. adjacent to each other The number of fifth sensing electrodes TE3 may be the same as the number of first sensing electrodes TE1, and the number of seventh sensing electrodes TE4 may be the same as the number of third sensing electrodes TE2. can do.

In FIG. 4 , seven fifth sensing electrodes TE3 are disposed in the third sub-area SSA3 and seven seventh sensing electrodes TE4 are disposed in the fourth sub-area SSA4. Although shown, the number of the fifth and seventh sensing electrodes TE3 and TE4 is not limited thereto. In FIG. 4 , four sixth sensing electrodes RE3 are disposed in the third sub-area SSA3 and four eighth sensing electrodes RE4 are disposed in the fourth sub-area SSA4. Although shown, the number of the sixth and eighth sensing electrodes RE3 and RE4 is not limited thereto.

The length of the fifth sensing electrodes TE3 in the first direction DR1 may be substantially the same as the length of the seventh sensing electrodes TE4 in the first direction DR1. Specifically, the length of the fifth sensing electrode disposed in the first row among the fifth sensing electrodes TE3 and the seventh sensing electrode disposed in the first column among the seventh sensing electrodes TE4 may be the same. That is, the fifth and seventh sensing electrodes TE3 and TE4 disposed in the same row may have the same length.

As an example of the present invention, the fifth sensing electrodes TE3 and the seventh sensing electrodes TE4 may have shapes that are symmetrical to each other with respect to the boundaries of the third and fourth sub-areas SSA3 and SSA4. The fifth sensing electrodes TE3 and the seventh sensing electrodes TE4 may be arranged to be spaced apart from each other at the boundary between the third sub-area SSA3 and the fourth sub-area SSA4. The fifth sensing electrodes TE3 may be electrically insulated from the seventh sensing electrodes TE4. As an example of the present invention, the first sensing electrodes TE1 and the fifth sensing electrodes TE3 may have shapes that are symmetrical to each other with respect to the boundaries of the first and third sub-areas SSA1 and SSA3. The third sensing electrodes TE2 and the seventh sensing electrodes TE4 may have shapes that are symmetrical to each other with respect to the boundaries of the second and fourth sub-areas SSA2 and SSA4.

The input sensor (ISP) includes third transmission lines (TL8a to TL14a), third reception lines (RL1c to RL4c), fourth transmission lines (TL8b to TL14b), and fourth reception lines (RL1d to RL4d). It further includes. The third transmission lines (TL8a to TL14a), the third reception lines (RL1c to RL4c), the fourth transmission lines (TL8b to TL14b), and the fourth reception lines (RL1d to RL4d) are connected to the display panel DP. It may be placed corresponding to the non-display area (NDA) of .

The third transmission lines TL8a to TL14a are connected to the fifth sensing electrodes TE3, and the third reception lines RL1c to RL4c are connected to the sixth sensing electrodes RE3. The fourth transmission lines TL8b to TL14b are connected to the seventh sensing electrodes TE4, and the fourth reception lines RL1d to RL4d are connected to the eighth sensing electrodes RE4.

The third transmission lines TL8a to TL14a receive the third transmission signal TS3 from the second sensor controller TIC2 and provide the third transmission signal TS3 to the fifth sensing electrodes TE3. The fourth transmission lines TL8b to TL14b receive the fourth transmission signal TS4 from the second sensor controller TIC2 and provide the fourth transmission signal TS4 to the seventh sensing electrodes TE4.

The second sensor controller (TIC2) is a third data acquisition unit (AFE3) that receives the third received signal from the sixth sensing electrodes (RE3) and a third data acquisition unit (AFE3) that receives the fourth received signal from the eighth sensing electrodes (RE4). 4 Includes data acquisition unit (AFE4). The third data acquisition unit (AFE3) receives the third reception signal through the third reception lines (RL1c to RL4c), and the fourth data acquisition unit (AFE4) receives the third reception signal through the fourth reception lines (RL1d to RL4d). A fourth reception signal is received.

The second sensor controller TIC2 detects a change in mutual capacitance between the fifth and sixth sensing electrodes TE3 and RE3 due to an external input in the third sub-area SSA3, based on the third received signal, and , coordinate information about the location where the change was detected can be generated. The second sensor controller TIC2 detects a change in mutual capacitance between the seventh and eighth sensing electrodes TE4 and RE4 in the fourth sub-area SSA4 based on the third received signal, and detects the change. Coordinate information about the location can be generated.

Referring to FIG. 5A , the first transmission signal TS1 provided to the first sensing electrodes TE1 may be a square wave signal that swings with a first amplitude Va1. The second transmission signal TS2 provided to the third sensing electrodes TE2 may be a square wave signal that swings with a second amplitude Va2. The second transmission signal TS2 may have a phase inverted from that of the first transmission signal TS1. As an example of the present invention, the second amplitude Va2 of the second transmission signal TS2 may be equal to the first amplitude Va1 of the first transmission signal TS1.

The third transmission signal TS3 provided to the fifth sensing electrodes TE3 may be a square wave signal that swings with the third amplitude Va3. The fourth transmission signal TS4 provided to the seventh transmission electrodes TE4 may be a square wave signal that swings with the fourth amplitude Va4. The fourth transmission signal TS4 may have an inverted phase from the third transmission signal TS3. As an example of the present invention, the fourth amplitude Va4 of the fourth transmission signal TS4 may be equal to the third amplitude Va3 of the third transmission signal TS3. However, the present invention is not limited to this.

As an example of the present invention, the first transmission signal TS1 may have an inverted phase with the third transmission signal TS3, and the second transmission signal TS2 may have an inverted phase with the fourth transmission signal TS4. You can have it. The first amplitude Va1 of the first transmission signal TS1 is equal to the third amplitude Va3 of the third transmission signal TS3, and the second amplitude Va2 of the second transmission signal TS2 is equal to the fourth amplitude Va1 of the first transmission signal TS1. It may be the same as the fourth amplitude Va4 of the transmission signal TS4.

When the first transmission signal TS1 is supplied to the first sub-area SSA1 and the second transmission signal TS2 having a phase inverted from that of the first transmission signal TS1 is supplied to the second sub-area SSA2. , destructive interference may occur between the first and second transmission signals TS1 and TS2. If destructive interference occurs between the first and second transmission signals (TS1 and TS2), electro-magnetic interference (EMI) occurs compared to the case where the first and second transmission signals (TS1 and TS2) are transmitted in the same phase. The problem can be improved.

Additionally, the first transmission signal TS1 supplied to the first sub-area SSA1 has an inverted phase with the third transmission signal TS3 to the third sub-area SSA3. Therefore, destructive interference may also occur between the first and third transmission signals TS1 and TS3. Likewise, the second transmission signal TS2 supplied to the second sub-area SSA2 has an inverted phase with the fourth transmission signal TS4 to the fourth sub-area SSA4. Therefore, destructive interference may also occur between the second and fourth transmission signals TS2 and TS4. In this way, as destructive interference occurs between adjacent sub-areas (SSA1 to SSA4), the electromagnetic interference problem can be further improved.

Referring to FIG. 5B, the second amplitude Va2 of the second transmission signal TS2 may be different from the first amplitude Va11 of the first transmission signal TS1a. For example, the first amplitude Va11 of the first transmission signal TS1a may be greater than the second amplitude Va2 of the second transmission signal TS2. The amplitude difference between the first transmission signal TS1a and the second transmission signal TS2 may be set according to the difference in line resistance between the first transmission lines TL1a to TL7a and the second transmission lines TL1b to TL7b. You can. Therefore, without designing an equal resistance to compensate for the difference in line resistance between the first transmission lines TL1a to TL7a and the second transmission lines TL1b to TL7b, the first and second transmission signals TS1a, Destructive interference can be effectively caused by simply adjusting the amplitude of TS2).

Additionally, the fourth amplitude Va4 of the fourth transmission signal TS4 may be different from the third amplitude Va31 of the third transmission signal TS3a. For example, the third amplitude Va31 of the third transmission signal TS3a may be greater than the fourth amplitude Va4 of the fourth transmission signal TS4. The amplitude difference between the third transmission signal TS3a and the fourth transmission signal TS4 may be set according to the difference in line resistance between the third transmission lines TL8a to TL14a and the fourth transmission lines TL8b to TL14b. You can. Therefore, without designing an equal resistance to compensate for the difference in line resistance between the third transmission lines TL8a to TL14a and the fourth transmission lines TL8b to TL14b, the third and fourth transmission signals TS3a, Destructive interference can be effectively caused just by adjusting the amplitude of TS4).

FIG. 6A is an enlarged plan view of a portion of the input sensor shown in FIG. 4, and FIG. 6B is a cross-sectional view taken along the cutting line II-II′ in FIG. 6A. Figure 7a is an enlarged plan view of a portion of the input sensor according to an embodiment of the present invention, and Figure 7b is a cross-sectional view taken along the cutting line III-III' in Figure 7a.

Referring to FIGS. 6A and 6B, each of the first sensing electrodes TE1 includes a plurality of first sensing patterns TP1 and a plurality of first bridge patterns BP1 arranged in the first direction DR1. It can be included. At least one first bridge pattern BP1 may be connected to two adjacent first sensing patterns TP1.

A sensing insulating layer 203 is disposed between the plurality of first sensing patterns TP1 and the plurality of first bridge patterns BP1, and the sensing insulating layer 203 is connected through the contact holes TP_CH defined in the sensing insulating layer 203. Each of the plurality of first bridge patterns BP1 may be connected to the corresponding first sensing pattern TP1.

Each of the second sensing electrodes RE1 may include second sensing patterns RP1 and first extension patterns EP1 arranged in the second direction DR2. At least one first extension pattern EP1 may extend from two adjacent second sensing patterns RP1. The first extended pattern EP1 may be formed integrally with the two adjacent second sensing patterns RP1. The first extension patterns EP1 are insulated from the first bridge patterns BP1 and may extend to intersect the first bridge patterns BP1.

The first and second sensing patterns TP1 and RP1 and the first extension patterns EP1 may be disposed on the same layer (eg, the sensing insulating layer 203). The first bridge patterns BP1 may be disposed on a layer (eg, base insulating layer 201) different from the sensing insulating layer 203.

As an example of the present invention, the first and second sensing patterns TP1 and RP1, and the first extension patterns EP1 may be included in the second conductive layer 204 shown in FIG. 2C, and the first bridge Patterns BP1 may be included in the first conductive layer 202 shown in FIG. 2C.

As an example of the present invention, the first and second sensing patterns TP1 and RP1, the first extension patterns EP1, and the first bridge patterns BP1 may include a transparent conductive layer. Each of the first and second sensing patterns TP1 and RP1 may have a size large enough to cover a plurality of light emitting devices (100PE, see FIG. 2C).

Referring to FIGS. 7A and 7B, as an example of the present invention, the first and second sensing patterns (TPa, RPa), first extension patterns (EPa), and first bridge patterns (BPa) include a metal layer. can do. Each of the first and second sensing patterns (TPa, RPa), first extension patterns (EPa), and first bridge patterns (BPa) may have a mesh shape. Accordingly, touch openings TOP may be defined in each of the first and second sensing patterns TPa and RPa. As an example of the present invention, each of the touch openings TOP may have a diamond shape.

When viewed in plan, a plurality of light emitting elements (100PE, see FIG. 2D) may be respectively disposed within the touch openings (TOP). Accordingly, the light generated from each light emitting device 100PE may be emitted normally without being affected by the first and second sensing patterns TPa and RPa.

FIG. 8A is a plan view of an input sensor according to an embodiment of the present invention, and FIG. 8B is an enlarged plan view of the first portion BB1 shown in FIG. 8A. Among the components shown in FIG. 8A, components that are the same as those shown in FIG. 4 are given the same reference numerals, and overlapping descriptions thereof are omitted.

Referring to FIGS. 8A and 8B , the input sensor ISPa includes a first sensing area SA1a and a second sensing area SA2a. The first sensing area SA1a and the second sensing area SA2a may be adjacent to each other in the second direction DR2.

The first sensing area SA1a includes a first sub-area SSA1a and a second sub-area SSA2a. The first and second sub-areas SSA1a and SSA2a may be adjacent to each other in the first direction DR1. The second sensing area SA2a includes a third sub-area SSA3a and a third sub-area SSA4a. The third and fourth sub-areas SSA3a and SS4a may be adjacent to each other in the first direction DR1.

The input sensor ISPa may include first sensing electrodes TE1, second sensing electrodes RE1, third sensing electrodes TE2, and fourth sensing electrodes RE2.

Each of the first sensing electrodes TE1 may include a plurality of first sensing patterns TP1 and a plurality of first bridge patterns BP1 arranged in the first direction DR1. At least one first bridge pattern BP1 may be connected to two adjacent first sensing patterns TP1. Each of the second sensing electrodes RE1 may include second sensing patterns RP1 and first extension patterns EP1 arranged in the second direction DR2. At least one first extension pattern EP1 may extend from two adjacent second sensing patterns RP2.

Each of the third sensing electrodes TE2 may include a plurality of third sensing patterns TP2 and a plurality of second bridge patterns BP2 arranged in the first direction DR1. At least one second bridge pattern BP2 may be connected to two adjacent third sensing patterns TP2. Each of the fourth sensing electrodes RE2 may include fourth sensing patterns RP2 and second extension patterns EP2 arranged in the second direction DR2. At least one second extended pattern EP2 may extend from two adjacent fourth sensing patterns RP2.

The first sensing electrodes TE1 and the third sensing electrodes TE2 may have shapes that are asymmetrical with respect to the boundaries of the first and second sub-areas SSA1 and SSA2. The length of the first sensing electrodes TE1 in the first direction DR1 may be different from the length of the third sensing electrodes TE2 in the first direction DR1. Specifically, the length of the first sensing electrode TE1 disposed in the last row (for example, the 7th column) among the first sensing electrodes TE1 is the length of the first sensing electrode TE1 disposed in the last column among the third sensing electrodes TE2. 3 It may be smaller than the length of the sensing electrode (TE2). That is, the first and third sensing electrodes TE1 and TE2 disposed in the same row may have different lengths. The length difference between the first sensing electrodes (TE1) and the third sensing electrodes (TE2) is the difference in line resistance between the first transmission lines (TL1a to TL7a) and the second transmission lines (TL1b to TL7b). It can be set accordingly.

Among the first sensing patterns TP1, the first sensing patterns disposed at the boundaries of the first and second sub-areas SSA1 and SSA2 (hereinafter referred to as first border sensing patterns BTP1) correspond to the first sensing patterns TP1. 1 As the length of the transmission line (TL1a to TL7a) increases, the area may decrease. For example, the first border detection pattern BTP1 in the last row may have a smaller area than the first border detection pattern BTP1 in the first row. The area of the first border detection patterns BTP1 may gradually decrease from the first row to the last row.

Among the second sensing patterns TP2, the second sensing patterns (hereinafter referred to as second border sensing patterns BTP2) disposed at the boundaries of the first and second sub-areas SSA1 and SSA2 correspond to the second sensing patterns TP2. 2 As the length of the transmission line (TL1b to TL7b) increases, the area can increase. For example, the second border detection pattern BTP2 in the last row may have a larger area than the second border detection pattern BTP2 in the first row. The area of the second border detection patterns BTP2 may gradually increase from the first row to the last row.

The first transmission signal (TS1, see Figure 5a) supplied to the first sub-area (SSA1) and the second transmission signal (TS2 (see Figure 5a) supplied to the second sub-area (SSA2) have inverted phases. Even if a difference in line resistance occurs between the first transmission lines (TL1a to TL7a) and the second transmission lines (TL1b to TL7b), destructive interference occurs between the first and second transmission signals (TS1 and TS2). This may not happen. To compensate for this difference in line resistance, the length of the first sensing electrodes TE1 may be set to be different from the length of the third sensing electrodes TE2. In this case, the line between the first transmission lines TL1a to TL7a and the second transmission lines TL1b to TL7b due to the difference in length between the first sensing electrodes TE1 and the third sensing electrodes TE2. Differences in resistance can be compensated. As a result, despite the difference in line resistance, destructive interference may occur between the first and second transmission signals TS1 and TS2, thereby efficiently improving the electromagnetic interference problem.

The fifth sensing electrodes TE3 and the seventh sensing electrodes TE4 may have shapes that are asymmetrical with respect to the boundaries of the third and fourth sub-areas SSA3 and SSA4. The length of the fifth sensing electrodes TE3 in the first direction DR1 may be different from the length of the seventh sensing electrodes TE4 in the first direction DR1. Specifically, the length of the fifth sensing electrode TE3 disposed in the first row among the fifth sensing electrodes TE3 may be smaller than the length of the seventh sensing electrode TE4 disposed in the first column among the seventh sensing electrodes TE4. You can. That is, the fifth and seventh sensing electrodes TE3 and TE4 disposed in the same row may have different lengths. The length difference between the fifth sensing electrodes (TE3) and the seventh sensing electrodes (TE4) is due to the difference in line resistance between the third transmission lines (TL1c to TL7c) and the fourth transmission lines (TL1d to TL7d). It can be set accordingly. The length of the fifth sensing electrodes TE3 may gradually increase from the first row to the last row. The length of the seventh sensing electrodes TE4 may gradually decrease from the first row to the last row.

The third transmission signal (TS3, see Figure 5a) supplied to the third sub-area (SSA3) and the fourth transmission signal (TS4 (see Figure 5a) supplied to the fourth sub-area (SSA4) have inverted phases. However, if a difference in line resistance occurs between the third and fourth transmission lines (TL8a to TL14a) and the fourth transmission lines (TL8b to TL14b), destructive interference occurs between the third and fourth transmission signals (TS3 and TS4). This may not happen. To compensate for this difference in line resistance, the length of the fifth sensing electrodes TE3 may be set to be different from the length of the seventh sensing electrodes TE4. In this case, the line between the third transmission lines (TL8a to TL14a) and the fourth transmission lines (TL8b to TL14b) due to the difference in length between the fifth sensing electrodes (TE3) and the seventh sensing electrodes (TE4) Differences in resistance can be compensated. As a result, despite the difference in line resistance, destructive interference may occur between the third and fourth transmission signals TS3 and TS4, thereby efficiently improving the electromagnetic interference problem.

Figure 9 is a top view of an input sensor according to an embodiment of the present invention. Among the components shown in FIG. 9, components that are the same as those shown in FIG. 4 are given the same reference numerals, and overlapping descriptions thereof are omitted.

Referring to FIG. 9, the input sensor (ISP) includes first transmission lines (TL1a to TL7a), first reception lines (RL1a to RL4a), second transmission lines (TL1b to TL7b), and second reception lines. Includes (RL1b~RL4b). First resistance compensation patterns CP1 may be provided on each of the second transmission lines TL1b to TL7b. The first resistance compensation patterns CP1 may compensate for the difference in line resistance between the first transmission lines TL1a to TL7a and the second transmission lines TL1b to TL7b. Specifically, the first resistance compensation patterns CP1 may compensate for the length difference between the first transmission lines TL1a to TL7a and the second transmission lines TL1b to TL7b. The total length of the second transmission lines TL1b to TL7b can be increased by the first resistance compensation patterns CP1, and as a result, the difference in line resistance due to the length difference can be compensated to implement an equal resistance design. . Accordingly, destructive interference may occur between the first and second transmission signals (TS1 and TS2, see FIG. 5A), thereby efficiently improving the electromagnetic interference problem.

The input sensor (ISP) includes third transmission lines (TL8a to TL14a), third reception lines (RL1c to RL4c), fourth transmission lines (TL8b to TL14b), and fourth reception lines (RL1d to RL4d). It further includes. Second resistance compensation patterns CP2 may be provided on each of the fourth transmission lines TL8b to TL14b. The second resistance compensation patterns CP2 may compensate for the difference in line resistance between the third transmission lines TL8a to TL14a and the fourth transmission lines TL8b to TL14b. Specifically, the second resistance compensation patterns CP2 may compensate for the length difference between the third transmission lines TL8a to TL14a and the fourth transmission lines TL8b to TL14b. The total length of the fourth transmission lines TL8b to TL14b can be increased by the second resistance compensation patterns CP2, and as a result, the difference in line resistance due to the length difference can be compensated to implement an equal resistance design. . Accordingly, destructive interference may occur between the third and fourth transmission signals (TS3 and TS4, see FIG. 5A), thereby efficiently improving the electromagnetic interference problem.

FIG. 10A is an enlarged plan view of the second part shown in FIG. 4, and FIG. 10B is an enlarged plan view of the third part shown in FIG. 4. FIG. 10C is a diagram showing area changes by location of first sub-dummy patterns according to an embodiment of the present invention. FIG. 10D is a diagram showing area changes by location of third sub-dummy patterns according to an embodiment of the present invention.

Referring to FIGS. 4, 10A, and 10B, the input sensor (ISP) includes first sensing electrodes (TE1), second sensing electrodes (RE1), third sensing electrodes (TE2), and fourth sensing electrodes. may include (RE2).

Each of the first sensing electrodes TE1 may include a plurality of first sensing patterns TP1 and a plurality of first bridge patterns BP1 arranged in the first direction DR1. At least one first bridge pattern BP1 may be connected to two adjacent first sensing patterns TP1. Each of the second sensing electrodes RE1 may include second sensing patterns RP1 and first extension patterns EP1 arranged in the second direction DR2. At least one first extension pattern EP1 may extend from two adjacent second sensing patterns RP2.

Each of the third sensing electrodes TE2 may include a plurality of third sensing patterns TP2 and a plurality of second bridge patterns BP2 arranged in the first direction DR1. At least one second bridge pattern BP2 may be connected to two adjacent third sensing patterns TP2. Each of the fourth sensing electrodes RE2 may include fourth sensing patterns RP2 and second extension patterns EP2 arranged in the second direction DR2. At least one second extended pattern EP2 may extend from two adjacent fourth sensing patterns RP2.

As shown in FIG. 10A, the input sensor ISP may further include first and second island patterns ILP1 and ILP2. The first and second island patterns (ILP1, ILP2) are electrically insulated from the second sensing patterns (RP1) and the first extension patterns (EP1), and may be electrically connected to the first sensing patterns (TP1). there is.

Each of the first and second island patterns ILP1 and ILP2 may have a hexagonal shape. However, this is an example, and the first island pattern ILP1 according to an embodiment of the present invention may have various shapes. The second island pattern ILP2 may have a shape symmetrical to the first island pattern ILP1 with respect to the first axis AX1 extending in the first direction DR1. The second island pattern ILP2 may be arranged to be spaced apart from the first island pattern ILP1 in the second direction DR2.

In one embodiment of the present invention, four first bridge patterns BP1 are exemplarily shown to connect two first sensing patterns TP1, but the first bridge patterns BP1 The number is not particularly limited to this. Each of the first bridge patterns BP1 may be connected to one of the first sensing patterns TP1 and one of the first and second island patterns ILP1 and ILP2. The two first sensing patterns TP1 spaced apart from each other may be electrically connected to each other through the first bridge patterns BP1 and the first and second island patterns ILP1 and ILP2.

The input sensor ISP may further include first dummy patterns MP1. The first dummy patterns MP1 are formed through the same process as the first and second sensing patterns TP1 and RP1. ) and may contain the same substances. The first dummy patterns MP1 are floating electrodes and are not electrically connected to the first and second sensing patterns TP1 and RP1. The first dummy patterns MP1 may be disposed between the first sensing patterns TP1 and the second sensing patterns RP1. By arranging the first dummy patterns MP1, the problem of the boundary area between the first and second sensing patterns TP1 and RP1 being visible can be reduced. The first dummy patterns MP1 may include first sub-dummy patterns MP1a and second sub-dummy patterns MP1b.

The first sub-dummy patterns MP1a may be adjacent to the first sensing patterns TP1, respectively. The second sub-dummy patterns MP1b may be adjacent to the second sensing patterns RP1, respectively. The first sub-dummy patterns MP1a and the second sub-dummy patterns MP1b may be spaced apart from each other.

As shown in FIG. 10C, the first sub-dummy patterns MP1a may have a width that increases from the first column C1_1 to the last column C1_7. For example, the first sub-dummy patterns MP1a have a first width W1_1 in the first column C1_1, a second width W1_3 in the third column C1_3, and a second width W1_3 in the last column C1_1. It may have a third width (W1_7). The second width W1_3 may be larger than the first width W1_1, and the third width W1_7 may be larger than the second width W1_3.

As the width of the first sub-dummy patterns MP1a increases, the area of the first sensing patterns TP1 may decrease. That is, the area of the first sensing patterns TP1 may decrease from the first row C1_1 to the last row C1_7. The difference in area of the first sensing patterns TP1 may be set according to the difference in line resistance between the first transmission lines TL1a to TL7a and the second transmission lines TL1b to TL7b.

Referring again to FIG. 10B , the input sensor ISP may further include third and fourth island patterns ILP3 and ILP4. The third and fourth island patterns (ILP3, ILP4) are electrically insulated from the fourth sensing patterns (RP2) and the second extension patterns (EP1), and may be electrically connected to the third sensing patterns (TP2). there is.

In one embodiment of the present invention, four second bridge patterns BP2 are exemplarily shown to connect two third detection patterns TP2, but the second bridge patterns BP2 The number is not particularly limited to this. Each of the second bridge patterns BP2 may be connected to one of the third sensing patterns TP2 and one of the third and fourth island patterns ILP3 and ILP4. The two third sensing patterns TP2 spaced apart from each other may be electrically connected to each other through the second bridge patterns BP2 and the third and fourth island patterns ILP3 and ILP4.

The input sensor (ISP) may further include second dummy patterns (MP2). The second dummy patterns MP2 are formed through the same process as the third sensing patterns TP2 and the fourth sensing patterns RP2, and the third sensing patterns TP2 and the fourth sensing patterns RP2 ) and may contain the same substances. The second dummy patterns MP2 are floating electrodes and are not electrically connected to the third and fourth sensing patterns TP2 and RP2. The second dummy patterns MP2 may be disposed between the third sensing patterns TP2 and the fourth sensing patterns RP2. By arranging the second dummy patterns MP2, the problem of the boundary area between the third and fourth sensing patterns TP2 and RP2 being visible can be reduced. The second dummy patterns MP2 may include third sub-dummy patterns MP2a and fourth sub-dummy patterns MP2b.

The third sub-dummy patterns MP2a may be adjacent to the third sensing patterns TP2, respectively. The fourth sub-dummy patterns MP2b may be adjacent to the fourth detection patterns RP2, respectively. The third sub-dummy patterns MP2a and fourth sub-dummy patterns MP2b may be spaced apart from each other.

As shown in FIG. 10D, the third sub-dummy patterns MP3a may have a width that increases from the first column C2_1 to the last column C2_7. For example, the third sub-dummy patterns MP2a have a first width W2_1 in the first column C2_1, a second width W2_3 in the third column C2_3, and a second width W2_3 in the last column C2_7. It may have a third width (W2_7). The second width W2_3 may be larger than the first width W2_1, and the third width W2_7 may be larger than the second width W2_3.

As the width of the third sub-dummy patterns MP2a increases, the area of the third sensing patterns TP2 may decrease. That is, the area of the third sensing patterns TP2 may decrease from the first row C2_1 to the last row C2_7. The difference in area of the third sensing patterns TP2 may be set according to the difference in line resistance between the first transmission lines TL1a to TL7a and the second transmission lines TL1b to TL7b.

As a result, an equal resistance design can be implemented by compensating for the line resistance between the first transmission lines TL1a to TL7a and the second transmission lines TL1b to TL7b. As a result, destructive interference may occur between the first and second transmission signals (TS1 and TS2, see FIG. 5A), thereby efficiently improving the electromagnetic interference problem.

FIG. 11 is a top view of a display device according to an embodiment of the present invention, and FIG. 12 is a top view of an input sensor according to an embodiment of the present invention. Among the components shown in FIGS. 11 and 12, components that are the same as those shown in FIGS. 1B and 4 are given the same reference numerals, and overlapping descriptions thereof are omitted.

Referring to FIG. 11 , a first active area AA1, a second active area AA2, a border area DS, and a peripheral area NAA may be defined in the display device DDa. Each of the first and second active areas AA1 and AA2 is an area where pixels are arranged and an image can be substantially displayed. As an example of the present invention, the image displayed in the first active area AA1 is referred to as the first image IM1, and the image displayed in the second active area AA2 is referred to as the second image IM2. The first and second images IM1 and IM2 may be independent images. However, the present invention is not limited to this. The first and second images IM1 and IM2 may be images that are dependent on each other.

The border area DS and the surrounding area NAA may be areas where the image IM is not displayed. The boundary area DS is disposed between the first and second active areas AA1 and AA2, and the peripheral area NAA may surround the first and second active areas AA1 and AA2. However, the present invention is not limited to this. The peripheral area NAA may be disposed on only one side of the first and second active areas AA1 and AA2 or may be omitted.

Referring to FIG. 12, the input sensor (ISPc) includes a first sensing area (SA1b) and a second sensing area (SA2b). The first sensing area SA1b and the second sensing area SA2b may be adjacent to each other in the second direction DR2.

The first sensing area SA1b includes a first sub-area SSA1b and a second sub-area SSA2b. The first and second sub-areas SSA1b and SSA2b may be adjacent to each other in the first direction DR1. The second sensing area SA2b includes a third sub-area SSA3b and a third sub-area SSA4b. The third and fourth sub-areas SSA3b and SS4b may be adjacent to each other in the first direction DR1.

The first sub-area SSA1b includes first and second areas A1 and A2. First sub-sensing electrodes TE1_1 and second sub-sensing electrodes RE1_1 are disposed in the first area A1, and third sub-sensing electrodes TE1_2 and fourth sub-sensing electrodes are disposed in the second area A2. Electrodes RE1_2 are disposed.

The second sub-area SSA2b includes third and fourth areas A3 and A4. The fifth sub-sensing electrodes TE2_1 and the sixth sub-sensing electrodes RE2_1 are disposed in the third area A3, and the seventh sub-sensing electrodes TE2_2 and the eighth sub-sensing electrodes are disposed in the fourth area A4. An electrode (RE2_2) is disposed.

The first sub-sensing electrodes TE1_1 and the third sub-sensing electrodes TE1_2 receive the first transmission signal TS1 (see FIG. 5A) from the first sensor controller TIC1. The fifth sub-sensing electrodes TE2_1 and the seventh sub-sensing electrodes TE2_2 receive the second transmission signal TS2 (see FIG. 5A) from the first sensor controller TIC1. The second transmission signal TS2 may have a phase inverted from that of the first transmission signal TS1. Alternatively, the first sub-sensing electrodes TE1_1 and the third sub-sensing electrodes TE1_2 may respectively receive first and second sub-transmission signals having inverted phases from the first sensor controller TIC1. You can. Additionally, the fifth sub-sensing electrodes TE2_1 and the seventh sub-sensing electrodes TE2_2 may respectively receive third and fourth sub-transmission signals having inverted phases from the first sensor controller TIC1. .

The first sub-sensing electrodes TE1_1 and the third sub-sensing electrodes TE1_2 may be arranged to be spaced apart from each other at the boundary of the first and third areas A1 and A3. The first sub-sensing electrodes TE1_1 may be electrically insulated from the third sub-sensing electrodes TE1_2. The fifth sub-sensing electrodes TE2_1 and the seventh sub-sensing electrodes TE2_2 may be arranged to be spaced apart from each other at the boundaries of the second and fourth areas A2 and A4. The fifth sub-sensing electrodes TE2_1 may be electrically insulated from the seventh sub-sensing electrodes TE2_2.

The second sub-sensing electrode RE1_1 and the fourth sub-sensing electrode RE1_2 may be arranged to be spaced apart from each other at the boundary of the first and second areas A1 and A2. The second sub-sensing electrode RE1_1 may be electrically insulated from the fourth sub-sensing electrode RE1_2. The sixth sub-sensing electrode RE2_1 and the eighth sub-sensing electrode RE2_2 may be arranged to be spaced apart from each other at the boundary of the third and fourth areas A3 and A4. The sixth sub-sensing electrode RE2_1 may be electrically insulated from the eighth sub-sensing electrode RE2_2.

The input sensor (ISP) includes first transmission lines (TL1a to TL6a), first sub reception lines (RL1a to RL4a), second sub reception lines (RL1e to RL4e), and second transmission lines (TL1b to TL6b). ), third sub-receiving lines (RL1b to RL4b) and fourth sub-receiving lines (RL1f to RL4f).

The first transmission lines TL1a to TL6a are connected to the first and third sub-sensing electrodes TE1_1 and TE1_2, and the second transmission lines TL1b to TL6b are connected to the fifth and seventh sub-sensing electrodes (TE1_1, TE1_2). Connected to TE2_1, TE2_2). The first sub-receiving lines RL1a to RL4a are connected to the second sub-sensing electrodes RE1_1, and the second sub-receiving lines RL1e to RL4e are connected to the fourth sub-sensing electrodes RE1_2. The third sub-receiving lines RL1b to RL4b are connected to the sixth sub-sensing electrodes RE2_1, and the fourth sub-receiving lines RL1f to RL4f are connected to the eighth sub-sensing electrodes RE2_2.

The first sensor controller TIC1 includes a first data acquisition unit AFEa, a second data acquisition unit AFEb, a third data acquisition unit AFEc, and a fourth data acquisition unit AFEd. The first data acquisition unit (AFEa) receives the first sub reception signal through the first sub reception lines (RL1a to RL4a), and the second data acquisition unit (AFEb) receives the first sub reception signal through the second sub reception lines (RL1e to RL4e). ) receives the second sub reception signal through. The third data acquisition unit (AFEc) receives the third sub reception signal through the third sub reception lines (RL1b to RL4b), and the fourth data acquisition unit (AFEd) receives the third sub reception signal through the fourth sub reception lines (RL1f to RL4f). ) receives the fourth sub reception signal through.

Based on the first sub-received signal, the first sensor controller TIC1 determines the capacitance (hereinafter referred to as mutual capacitance) between the first and second sub-sensing electrodes TE1_1 and RE1_1 in the first area A1. )) can detect changes and generate coordinate information about the location where the change was detected. The first sensor controller TIC1 detects a change in mutual capacitance between the third and fourth sub sensing electrodes TE1_2 and RE1_2 in the second area A2 based on the second sub reception signal, and detects the change in mutual capacitance between the third and fourth sub sensing electrodes TE1_2 and RE1_2 in the second area A2. Coordinate information about the detected location can be generated. Based on the third sub-received signal, the first sensor controller TIC1 determines the capacitance (hereinafter referred to as mutual capacitance) between the fifth and sixth sub-sensing electrodes TE2_1 and RE2_1 in the third area A3. )) can detect changes and generate coordinate information about the location where the change was detected. The first sensor controller TIC1 detects a change in mutual capacitance between the seventh and eighth sub-sensing electrodes TE2_2 and RE2_2 in the fourth area A4 based on the fourth sub-received signal, and determines whether the change is Coordinate information about the detected location can be generated.

In the present invention, the mode for sensing the input by detecting changes in mutual capacitance is referred to as the first sensing mode, and the mode for sensing the input using the self-cap method is referred to as the second sensing mode. refers to

In the first sensing mode, the first sub reception lines (RL1a to RL4a), the second sub reception lines (RL1e to RL4e), the third sub reception lines (RL1b to RL4b), and the fourth sub reception lines (RL1f to RL1f) A bias voltage may be applied to RL4f).

Meanwhile, in the second sensing mode, the first sensor controller (TIC1) applies the first sub-transmission signal to the first sub-receiving lines (RL1a to RL4a) and the first sub-transmission signal to the second sub-receiving lines (RL1e to RL4e). A second sub-transmission signal having an inverted phase from the first sub-transmission signal may be applied. In the second sensing mode, the first sensor controller (TIC1) applies the third sub transmission signal to the third sub reception lines (RL1b to RL4b) and the third sub transmission signal to the fourth sub reception lines (RL1f to RL4f). A second sub-transmission signal having a phase inverted from the transmission signal may be applied. As an example of the present invention, the first sub-transmission signal may have a phase inverted with the third sub-transmission signal, and the second sub-transmission signal may have a phase inverted with the fourth sub-transmission signal.

Therefore, even if the second and fourth sub-sensing electrodes (RE1_1, RE1_2), and the sixth and eighth sub-sensing electrodes (RE2_1, RE2_2) receive the first to fourth sub-transmission signals in the second sensing mode, the Destructive interference may occur between the first to fourth sub-transmission signals. As a result, the electromagnetic interference problem can be efficiently improved even in the second sensing mode.

The third sub-area SSA3b includes the fifth and sixth areas A5 and A6. The ninth sub-sensing electrodes TE3_1 and the tenth sub-sensing electrodes RE3_1 are disposed in the fifth area A5, and the eleventh sub-sensing electrodes TE3_2 and the twelfth sub-sensing electrodes are disposed in the sixth area A6. Electrodes RE3_2 are disposed.

The fourth sub-area SSA4b includes the seventh and eighth areas A7 and A8. The 13th sub-sensing electrodes TE4_1 and the 14th sub-sensing electrodes RE4_1 are disposed in the seventh area A7, and the 15th sub-sensing electrodes TE4_2 and the 16th sub-sensing electrodes are disposed in the eighth area A8. An electrode (RE4_2) is disposed.

The ninth sub-sensing electrodes TE3_1 and the eleventh sub-sensing electrodes TE3_2 receive the third transmission signal TS3 (see FIG. 5A) from the second sensor controller TIC2. The 13th sub-sensing electrodes TE4_1 and 15th sub-sensing electrodes TE4_2 receive the fourth transmission signal TS4 (see FIG. 5A) from the second sensor controller TIC2. The fourth transmission signal TS4 may have an inverted phase from the third transmission signal TS3. Alternatively, the ninth sub-sensing electrodes TE3_1 and the eleventh sub-sensing electrodes TE3_2 may respectively receive fifth and sixth sub-transmission signals having inverted phases from the second sensor controller TIC2. You can. In addition, the 13th sub-sensing electrodes TE4_1 and the 15th sub-sensing electrodes TE4_2 may respectively receive the 7th and 8th sub-transmission signals having inverted phases from the second sensor controller TIC2. .

The ninth sub-sensing electrodes TE3_1 and the eleventh sub-sensing electrodes TE3_2 may be arranged to be spaced apart from each other at the boundaries of the fifth and sixth areas A5 and A6. The ninth sub-sensing electrodes TE3_1 may be electrically insulated from the 11th sub-sensing electrodes TE3_2. The 13th sub-sensing electrodes TE4_1 and the 15th sub-sensing electrodes TE4_2 may be arranged to be spaced apart from each other at the boundaries of the seventh and eighth areas A7 and A8. The 13th sub-sensing electrodes TE4_1 may be electrically insulated from the 15th sub-sensing electrodes TE4_2.

The tenth sub-sensing electrode RE3_1 and the twelfth sub-sensing electrode RE3_2 may be arranged to be spaced apart from each other at the boundary of the fifth and sixth areas A5 and A6. The tenth sub-sensing electrode RE3_1 may be electrically insulated from the twelfth sub-sensing electrode RE3_2. The 14th sub-sensing electrode RE4_1 and the 16th sub-sensing electrode RE4_2 may be arranged to be spaced apart from each other at the boundary of the seventh and eighth areas A7 and A8. The 14th sub-sensing electrode RE4_1 may be electrically insulated from the 16th sub-sensing electrode RE4_2.

The input sensor (ISP) includes third transmission lines (TL7a to TL12a), fifth sub reception lines (RL1c to RL4c), sixth sub reception lines (RL1g to RL4g), and fourth transmission lines (TL7b to TL12b). ), seventh sub-receiving lines (RL1d to RL4d) and eighth sub-receiving lines (RL1h to RL4h).

The third transmission lines TL7a to TL12a are connected to the 9th and 11th sub-sensing electrodes TE3_1 and TE3_2, and the fourth transmission lines TL7b to TL12b are connected to the 13th and 15th sub-sensing electrodes (TE3_1, TE3_2). Connected to TE4_1, TE4_2). The fifth sub-receiving lines (RL1c to RL4c) are connected to the tenth sub-sensing electrodes (RE3_1), and the sixth sub-receiving lines (RL1g to RL4g) are connected to the twelfth sub-sensing electrodes (RE3_2). The 7th sub-receiving lines RL1d to RL4d are connected to the 14th sub-sensing electrodes RE4_1, and the 8th sub-receiving lines RL1h to RL4h are connected to the 16th sub-sensing electrodes RE4_2.

The second sensor controller TIC2 includes a fifth data acquisition unit (AFEe), a sixth data acquisition unit (AFEf), a seventh data acquisition unit (AFEg), and an eighth data acquisition unit (AFEh). The fifth data acquisition unit (AFEe) receives the fifth sub reception signal through the fifth sub reception lines RL1c to RL4c, and the sixth data acquisition unit AFEf receives the fifth sub reception signal through the sixth sub reception lines RL1g to RL4g. ) receives the sixth sub reception signal through. The 7th data acquisition unit (AFEg) receives the 7th sub reception signal through the 7th sub reception lines RL1d to RL4d, and the 8th data acquisition unit AFEh receives the 7th sub reception signal through the 8th sub reception lines RL1h to RL4h. ) receives the eighth sub reception signal through.

Based on the fifth sub-received signal, the second sensor controller TIC2 determines the capacitance (hereinafter referred to as mutual capacitance) between the ninth and tenth sub-sensing electrodes TE3_1 and RE3_1 in the fifth area A5. )) can detect changes and generate coordinate information about the location where the change was detected. The second sensor controller TIC2 detects a change in mutual capacitance between the 11th and 12th sub-sensing electrodes TE3_2 and RE3_2 in the sixth area A6 based on the sixth sub-received signal, and determines whether the change is Coordinate information about the detected location can be generated. Based on the seventh sub-received signal, the second sensor controller TIC2 determines the capacitance (hereinafter referred to as mutual capacitance) between the 13th and 14th sub-sensing electrodes TE4_1 and RE4_1 in the seventh area A7. )) can detect changes and generate coordinate information about the location where the change was detected. The second sensor controller (TIC2) detects a change in mutual capacitance between the 15th and 16th sub-sensing electrodes (TE4_2, RE4_2) in the 8th area (A8) based on the 8th sub-received signal, and detects the change in mutual capacitance Coordinate information about the detected location can be generated.

In the first sensing mode, the fifth sub reception lines (RL1c to RL4c), the sixth sub reception lines (RL1g to RL4g), the seventh sub reception lines (RL1d to RL4d), and the eighth sub reception lines (RL1h) A bias voltage may be applied to ~RL4h).

Meanwhile, in the second sensing mode, the second sensor controller (TIC1) applies the fifth sub-transmission signal to the fifth sub-receiving lines (RL1c to RL4c) and the fifth sub-transmission signal to the sixth sub-receiving lines (RL1g to RL4g). A sixth sub-transmission signal having an inverted phase from the 5 sub-transmission signal can be applied. In the second sensing mode, the second sensor controller (TIC2) applies the seventh sub transmission signal to the seventh sub reception lines (RL1d to RL4d) and the seventh sub transmission signal to the eighth sub reception lines (RL1h to RL4h). An eighth sub-transmission signal having a phase inverted from the transmission signal can be applied. As an example of the present invention, the fifth sub-transmission signal may have a phase inverted with the seventh sub-transmission signal, and the sixth sub-transmission signal may have a phase inverted with the eighth sub-transmission signal.

Therefore, even if the 10th and 12th sub-sensing electrodes (RE3_1, RE3_2) and the 14th and 16th sub-sensing electrodes (RE4_1, RE4_2) receive the 5th to 8th sub-transmission signals in the second sensing mode, the Destructive interference may occur between the 5th to 6th sub-transmission signals. As a result, the electromagnetic interference problem can be efficiently improved even in the second sensing mode.

Although the present invention has been described above with reference to preferred embodiments, those skilled in the art or have ordinary knowledge in the relevant technical field should not deviate from the spirit and technical scope of the present invention as set forth in the claims to be described later. It will be understood that the present invention can be modified and changed in various ways within the scope of the present invention. Therefore, the technical scope of the present invention should not be limited to what is described in the detailed description of the specification, but should be defined by the scope of the patent claims.

AM: Car DD: Display device
DP: Display panel ISP: Input detection panel
TIC1: First sensor controller TIC2: Second sensor controller
SA1: first sensing area SA2: second sensing area
SSA1: first sub-area SSA2: second sub-area
TE1: second sensing electrodes RE1: second sensing electrodes
TE2: third sensing electrodes RE2: fourth sensing electrodes
AFE1: 1st data acquisition unit AFE2: 2nd data acquisition unit
TL1a~TL7a: first transmission lines TL1b~TL7b: second transmission lines
TL8a~TL14a: first transmission lines TL8b~TL14b: fourth transmission lines
TS1: first transmission signal TS2: second transmission signal
TS3: Third transmission signal TS4: Fourth transmission signal

Claims (22)

A display panel that displays images;
an input sensor disposed on the display panel and including a first sensing area for sensing an input, wherein the first sensing area includes a first sub-area and a second sub-area; and
Includes a first sensor controller that drives the first sensing area,
The input sensor is,
first sensing electrodes disposed in the first sub-region and receiving a first transmission signal from the first sensor controller;
second sensing electrodes disposed in the first sub-region and crossing the first sensing electrodes;
third sensing electrodes disposed in the second sub-region and receiving a second transmission signal having a phase inverted from the first transmission signal from the first sensor controller; and
A display device including fourth sensing electrodes disposed in the second sub-region and crossing the third sensing electrodes. The method of claim 1, wherein the first sensor controller:
a first data acquisition unit that receives a first reception signal from the second sensing electrodes; and
A display device including a second data acquisition unit that receives a second reception signal from the fourth sensing electrodes. According to paragraph 1,
The first sub-area and the second sub-area are adjacent to each other in a first direction,
The first sensing electrodes and the third sensing electrodes are disposed to be spaced apart from a boundary between the first sub-region and the second sub-region. The method of claim 3, wherein each of the first sensing electrodes and the third sensing electrodes extends in the first direction,
Each of the second sensing electrodes and the fourth sensing electrodes extends in a second direction intersecting the first direction. The method of claim 4, wherein the input sensor is:
first transmission lines connected to the first sensing electrodes;
first receiving lines connected to the second sensing electrodes;
second transmission lines connected to the third sensing electrodes; and
A display device including second receiving lines connected to the fourth sensing electrodes. The display device of claim 5, wherein the first sensing electrodes and the third sensing electrodes have symmetrical shapes with respect to the boundary. The display device of claim 6 , wherein the first transmission lines include a resistance compensation pattern that compensates for a difference in length between the first transmission lines and the second transmission lines. The display device of claim 7, wherein the first transmission signal has the same amplitude as the second transmission signal. The method of claim 6, wherein the first transmission signal has an amplitude different from the second transmission signal,
A display device wherein an amplitude difference between the first transmission signal and the second transmission signal is set according to a line resistance difference between the first transmission lines and the second transmission lines. The method of claim 5, wherein the first sensing electrodes and the third sensing electrodes have the same length in the first direction,
The first sensing electrodes and the third sensing electrodes have different areas,
A display device in which an area difference between the first sensing electrodes and the third sensing electrodes is set according to a line resistance difference between the first transmission lines and the second transmission lines. The method of claim 10, wherein the input sensor is:
first dummy patterns disposed around the first sensing electrodes; and
Includes second dummy patterns disposed around the third sensing electrodes,
The display device wherein the first dummy patterns and the second dummy patterns have different areas due to an area difference between the first sensing electrodes and the third sensing electrodes. The display device of claim 10, wherein the first transmission signal has the same amplitude as the second transmission signal. The display device of claim 5, wherein the first sensing electrodes and the third sensing electrodes have asymmetrical shapes with respect to the boundary. The method of claim 13, wherein the first sensing electrodes and the third sensing electrodes have different lengths in the first direction,
A display device in which a length difference between the first sensing electrodes and the third sensing electrodes is set according to a line resistance difference between the first transmission lines and the second transmission lines. The method of claim 1, wherein the input sensor is:
Further comprising a second sensing area adjacent to the first sensing area in a second direction intersecting the first direction,
The second sensing area includes a third sub-area and a fourth sub-area adjacent to each other in the first direction. According to clause 15,
A display device further comprising a second sensor controller connected to the second sensing area. The method of claim 16, wherein the input sensor is:
fifth sensing electrodes disposed in the third sub-region and receiving a third transmission signal from the second sensor controller;
sixth sensing electrodes disposed in the third sub-region and crossing the fifth sensing electrodes;
seventh sensing electrodes disposed in the fourth sub-region and receiving a fourth transmission signal having a phase inverted from the third transmission signal from the second sensor controller; and
A display device including eighth sensing electrodes disposed in the fourth sub-region and crossing the seventh sensing electrodes. The method of claim 17, wherein the second sensor controller:
a third data acquisition unit that receives a third reception signal from the sixth sensing electrodes; and
A display device including a fourth data acquisition unit that receives a fourth reception signal from the eighth sensing electrodes. The method of claim 1, wherein a second boundary sensing electrode disposed adjacent to the boundary among the second sensing electrodes has a size different from the remaining second sensing electrodes,
Among the fourth sensing electrodes, a fourth border sensing electrode disposed adjacent to the border has a different size from the remaining fourth sensing electrodes. The method of claim 1, wherein the first sub-region includes first and second regions,
The second sensing electrodes include first sub-sensing electrodes disposed in the first area and second sub-sensing electrodes disposed in the second area,
The second sub-region includes third and fourth regions,
The fourth sensing electrodes include third sub-sensing electrodes disposed in the third region and fourth sub-sensing electrodes disposed in the fourth region. The method of claim 20, wherein the input sensor is:
first transmission lines connected to the first sensing electrodes;
first sub-receiving lines connected to the first sub-sensing electrodes;
second sub receiving lines connected to the second sub sensing electrodes;
second transmission lines connected to the third sensing electrodes; and
third sub-receiving lines connected to the third sub-sensing electrodes; and
A display device including third sub-receiving lines connected to the third sub-sensing electrodes. The method of claim 21, wherein a bias voltage is applied to the first to fourth sub-receiving lines in the first sensing mode,
In the second sensing mode, a first sub-transmission signal is applied to the first and third sub-reception lines, and a second sub-transmission signal having a phase inverted from the first sub-transmission signal is applied to the second and fourth sub-reception lines. A display device to which a signal is applied.

Images